Home / 81,355.35-112,267.10-47,364.81

Finding the Fourth Proportional to 81,355.35, 112,267.10 and 47,364.81

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Solution

The fourth proportional to 81,355.35, 112,267.10 and 47,364.81 is: 65,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,355.35 : 112,267.10 = 47,364.81 : x
  2. Step 2: Convert to fraction form
    81,355.35/112,267.10 = 47,364.81/x
  3. Step 3: Cross multiply
    81,355.35x = 112,267.10 × 47,364.81
  4. Step 4: Simplify right side
    81,355.35x = 5,317,509,623.93
  5. Step 5: Solve for x
    x = 5,317,509,623.93/81,355.35
  6. Step 6: Final answer
    x = 65,361.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.